Accurail, Inc.
 Akron Canton & Youngstown Railroad Historical Society
 ALKEM Scale Models - Etched brass kits in HO- and N-scale
 American Model Builders (Laserkit)
 Appalachian Railroad Modeling - The Website for Prototype Modelers of Coal-Hauling Railroads
 Athearn, Inc.
 Atlas Model Railroad Company, Inc.
 Berkshire Valley Models
 B&O Modeler Magazine - Prototype modeling
 B & O Railroad Museum
 B. C. Enterprises, Gardner, MA
 BTS (Bill's Train Shop), Belington, WV
 Boston and Albany Hobbies, Manchester, NH
 Martin F. O’Rourke Memorial Railroad Library, Bowie, Maryland
 Bowser Manufacturing Co.
 Railroads in Brasil
 Blue Ridge Chapter, NRHS, Lynchburg, VA
 Brunswick (Maryland) Heritage Railroad Museum  
 Friends of the Burlington Northern Railroad
 =C=Rail Intermodal - European Themed Containers and Related Modeling Stuff in N- through O-scales
 California State Railroad Museum, Sacramento, CA
 Cass Scenic Railroad State Park - A West Virginia State Park
 Central Pennsylvania Model Railroading Home Page
 Chesapeake & Ohio Historical Society, includes Heritage Center in Clifton Forge VA
 Chicagoland Railroad Prototype Modelers Conference
 Classic Model Trains 
 CMP SHOPS MODELS - resin and laser cut models for scale modelers of industry 
 CMR Products LLC - Custom Model Railroading and Digital Command Control products, including decals
 Coalfields of the Appalachian Mountains
 Collector's Corner - model buses, cars, trucks, and subway cars
 Cumbres & Toltec Scenic Railroad
 Custom Traxx - extensive traction decals
 Dana's Railroad Supply, Spring Hill, Florida
 Dave's Trains, Inc. - postwar Lionel trains and old trains from the Soviet Union
 Deerfield Beach Railroad Museum - Southern Florida Railroad Museum
 Delaware & Hudson Railway Historical Society - New Society
 Division Point, Boulder, CO, brass dealer
 Durango & Silverton Narrow Gauge Railroad in Durango, Colorado
 Easton & Potomac Railroad: Layout Tour and Memorial Tribute
 East Broad Top Railroad - Rockhill Furnace, PA
 East Penn Traction Club
 Electric Railroaders’ Association, Inc.
 EngineHouse Services LLC, Green Bay, WI, Superb DCC Installation
 Entertrainment Junction, world’s largest indoor train display, 30 minutes north of downtown Cincinnati
 Erie Lackawanna Railroad Historical Society
 4th Division, Pacific Northwest Region, NMRA
 Friends of the East Broad Top
 Funaro and Camerlengo - Finely detailed resin craftsman kits of cars, buildings and accessories for US prototype railroads
 GHB International, power trucks for Corgi O-scale PCCs
 Glebe Ladies Tennis Club (my sister's web site)
 Grand Canyon Railway
 Great Scale Model Train Show at Timonium
 Great Smoky Mountains Railroad
 Greenberg Train Shows
 Hagerstown (Maryland) Model Railroad Museum
 HOSAM, S. A. McCall, Custom Painter, Franklin, VA
 House of Trains, Omaha NE, Superb DCC Installation
 Illinois Railway Museum
 Imperial Hobby Productions
 Indian Railways Fans Group
 Intermountain Railway Company
 Jason's Brass Poles, superb line poles in many scales by Brian Weisman
 Kappler Mill & Lumber Co., scale lumber
 KenRay Models - HO- and N-scale machinery and detail parts
 Kentucky Railway Museum
 "Koleje Male i Duze," a Polish hobby magazine (click Union Jack for English)
 La Belle Woodworking Company
 Lake Junction Models
 Laster Hobbies - Source for hobby tools
 Lehigh Valley S Gaugers
 Loco Joe’s Hobbies - Bunker Hill, WV
 Louisville & Nashville Railroad Historical Society
 Mainline Hobby Supply, Inc., Blue Ridge Summit, PA 
 Mainline Models -  finely crafted, desktop models for the rail industry
 Michigan Railroad History Facebook Group
 Michigan Railroad History Web Site
 Micro-Mark, Berkeley Heights, NJ
 Micro-Trains Line Co.
 Mid-Atlantic Railroad Prototype Modelers Meet
 Mid-Eastern Region, NMRA
 Milwaukee Road Museum and Depot, South Cle Elum, Washington
 Milwaukee Road, Superior Division, model railroad under construction in Reston, VA
 Mitchell's, Wilmington DE
 Model Memories
 Model Railroad Hobbyist
 Model Railroad News
 Modern Rails Company, G-scale decals by Ricky Rupp
 Mountains and Plains - Hosts Ride Colorado's Historic Railroads (see them all!)
 Robert Lee Moore, custom Virginian builder, railscene@aol.com
 Nashville Steam Preservation Society - Restoring Nashville, Chattanooga & St. Louis Railway No. 576
 New York City Subway (unofficial) Web Site
 NMRA's Directory of World Wide Rail Sites
 National Association of S Gaugers
 NH Custom Painting – Specialization in  Traction Models
 Norfolk & Western Historical Society
 Northwest Railway Museum, Snoqualmie, WA
 The N-scale Division, Wayne, NJ (mail order)
 Oil Creek & Titusville Railroad, Titusville, PA
 O. Winston Link Museum, Roanoke, VA
 Oregon Coast Railroad, by Mat Thompson, in Gainesville, VA
 Martin F. O’Rourke Memorial Railroad Library, Bowie, Maryland
 Panama Jones - Panama Canal tourism bureau including rides on the Panama Canal Railroad
 Pennsy 'S' Models, S-scale Pennsy X-29 box cars
 Pennsylvania Trolley Museum, Washington, PA
 Pikesville Models, S-Scale Products by David S. Blum
 P&WV Technical and Historical Interest Group Web Site
 PORT LINES HOBBY, Newburyport, MA
 Potomac Division, MER, NMRA 
 Pre-Size - urethane cast tunnel portals, retaining walls, abutments, culverts, bridge piers, and much more for all the popular model railroading scales
 Prince William County (Virginia) Model Railroad Club
 Pro Custom Hobbies, Eldersburg, MD
 Puget Sound Garden Railway Society
 Puget Sound Model Railroad Engineers - Stunning layout at the Washington State History Museum, Tacoma, WA
 Railhead Video Productions, by Rich Clark
 Railroad Influence on West Virginia Politics in Civil War America, by Ian Anderson - How the creation of West Virginia was influenced by the Baltimore & Ohio Railroad
 Railroad Model Craftsman
 Railroad Standard Gauge or Roman Chariots + Railroad Standards = Horse Poop
 Reading (PA) Society of Model Engineers
 Rensselaer Railroad Heritage Exhibit
 Richmond, Fredericksburg and Potomac Railroad - Web Site
 Real Yorkshire Travel & Tours - By Tim Barber
 Road Scholar Programs about the Southwest by Northern Arizona University
 Rockhill Trolley Museum/Railways to Yesterday - Rockhill Furnace, PA
 Roundhouse Electric Trains, Louisville, KY
 Scale Figures for Model Railroads
 Seashore Trolley Museum, Kennebunkport, ME
 Shapeways - Virginian Battleship Gondolas N-Scale
 Shapeways - Virginian EL-C (E-33) electric shells in N-scale 
 Shapeways - Virginian EL-2B (Streamliner) electric shells in N-scale
 Shapeways - Virginian EL-3A (Box Cabs) electric shells in N-scale
 Shelf Layouts: Custom Model Railroads by Lance Mindheim
 Sound & Northwestern LLC - craftsman structure kits, details, signs, and posters based on actual buildings in the Pacific Northwest
 Southbound Modelworks & Decal Company - Resin kits, especially midwestern cabooses
 Southeastern Model Railroaders' Forum
 S-scale Model Railroading Home Page
 Standard Railway Castings Company is an S-scale-only manufacturer and vendor of freight car kits and detail parts
 Stephans Railroad History - Railroad Books &Magazines
 Strasburg Rail Road, Lancaster County, PA
 Tennessee Central Railway Museum - 576 Restoration Host in Nashville, TN
 Tennessee Valley Railroad Museum - Great Museum in Chattanooga, TN
 Tenon Tours - Uncover the Best of Europe with Ease
 Tichy Train Group, HO kits, N, S, HO, and O scale parts
 Tomalco Track - a full line of track products for the S scale model railroad builder
 Train Depot - Hobby Shop - Manassas, VA
 The Train Station, Columbus, Ohio
 Tim Barber's Real Yorkshire Blog
 Trainline, Europe's biggest train and coach app
 Trainworld, Brooklyn, NY
 Transit Toronto
 Tren Urbano - Puerto Rico's Transit Line - map by Joel Villarini Falbe
 Underground Railway Press, prototype railroad drawings
 Virginia Museum of Transportation, Roanoke, VA
 Virginia Scenic Railway, the only excursion train in Virginia
 Virginian Railway (VGN) Enthusiasts Group
 Bob Werre Photography - Houston, TX
 Westerfield Models - Resin Kits
 Yankee Dabbler, New Port Richey,  FL